Interface generation device for shock tube experimental study

Abstract

The invention discloses an interface generation device for a liquid film required by a shock tube generation experiment. The interface generation device comprises a top fixed plate, a bottom fixed plate, a movable plate and interface attachment lines, wherein the top fixed plate and the bottom fixed plate are parallel to each other at a fixed distance and used for fixing the entire device, the movable plate is arranged between the top fixed plate and the bottom fixed plate, the lower surface of the top fixed plate and the upper surface of the movable plate are respectively provided with a slot, the two slots are correspondent in position in a vertical direction and symmetrical in shape relative to a horizontal plane, and are used for fixing the interface attachment lines, the interface attachment lines are used for attaching the liquid film, and the movable plate is used for making the two interface attachment lines contact or separate mutually. The entire interface generation device disclosed by the invention is simple and reasonable in structure and convenient to install, and thus, the experimental efficiency can be increased.

Description

technical field [0001] The invention belongs to the technical field of fluid mechanics, and in particular relates to an interface generation device used for the experimental research of a shock tube. Background technique [0002] When the interface between two layers of fluids with different properties is impacted by shock waves, the disturbance on the interface will continue to grow, forming Richtmyer-Meshkov (RM) instability. The study of this phenomenon has important engineering application and academic research value, involving many research fields such as inertial confinement nuclear fusion, cutting-edge weapons, aerospace engines, astrophysics, and turbulence. Conducting shock tube experiments is an important method to study RM instability, and the interface generation method has always been one of the key technologies that affect the accuracy of experiments. At present, the discontinuous surface type interface is usually formed by the nitrocellulose membrane method. ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of interface generating device used in shock tube experimental research, solve the problems existing in the gas interface generating method in the current RM instability experimental research, such as the experimental process is cumbersome, and there is little interference to the late stage of the flow field evolution. Big and so on

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